Natural history and management of renal artery aneurysms in a single tertiary referral center

RAAs tend to have a benign natural history. Although previous reports have not identified any factors that contribute to RAA growth, we observed that RAA location, sex, smoking history, and hypertension may have an impact on growth rates. No ruptures were observed. Operative repair at our institution was rare, with no morbidity or mortality. Observation of RAAs over time seems feasible in the asymptomatic patient with a small RAA.